Essays about: "Umeälven"
Showing result 1 - 5 of 17 essays containing the word Umeälven.
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1. Predict sex in salmonids using motion-triggered cameras and artificial intelligence
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : As the EU water directive starts to be implemented in Swedish law a new national plan of negotiating new environmental permits for every hydropower plant. This process will most likely result in the building of many new fish passages and ladders around the dams to allow fish and other aquatic life to pass them. READ MORE
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2. Downstream migration and survival of Atlantic salmon (Salmo salar L.) kelts and fallbacks when passing a hydropower plant
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Repeat spawners of Atlantic salmon may be of great importance for population stability, the return spawners can significantly contribute to recruitment of juveniles. To have a significant proportion of repeat spawners in the population, it is necessary that salmons can successfully migrate back to the sea after spawning upriver. READ MORE
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3. The impact of abiotic factors on daily spawning migration of Atlantic salmon (Salmo salar) in two north Swedish rivers
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Atlantic salmon (Salmo salar) depends on two major migrations to fulfil their life cycle, from their birth place in rivers to sea, and back upstream the river again to spawn. Salmon stocks have been heavily reduced during the last century due to human activities such as hydropower and timber floating. READ MORE
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4. AHA in northern Sweden – a case study : conservation values of deciduous trees based on saproxylic insects
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : AHA is a Swedish abbreviation of "reveal threatened park and avenue trees" and is a method to assess the conservation value of individual trees, mainly in the park environments but also in natural stands. This method has previously only been practiced in southern Sweden (Sörensson 2008). READ MORE
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5. Laxens uppströmsvandring i den restaurerade och flödesreglerande Umeälvens nedre del
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : The expansion of hydroelectric power has negatively affected the Baltic stock of Atlantic salmon (Salmo salar L.). To enable spawning migration of salmon in flow controlled rivers with intact wild stocks, bypass channels and resting pools with smaller flows are constructed to help salmonids in their migration upstream. READ MORE
